the simple fact is it is your choice whether to feel guilty or not. you are not responsible for your parents feelings. you can play the role of "good son" and give them a call every weekend and make them happy, but set boundaries with this call. you do not need to inform them of everything that is going on in your life. just let them know that work is going well, life is well. if they insist on more, say im not going to talk to you anymore. or simply text them and let them know things are going well, hope they are well. enmeshment is a difficult thing to get past. maybe a few sessions in therapy to discuss the particulars of your situation will give you some pointers on how to separate from your parents more effectively. take care.